Chicago — Tanglewood, 1970

Full live concert of Chicago at Tanglewood in Lenox, Massachusetts, on 21 July 1970. This filmed full concert, often issued as Chicago: Live at Tanglewood 1970, documents the band’s very first line-up — Terry Kath on guitar, Robert Lamm on keyboards, Peter Cetera on bass, the horn section of Lee Loughnane, James Pankow and Walter Parazaider, and Danny Seraphine on drums. By this date Chicago had just shortened its name from Chicago Transit Authority and was asserting its horn-driven jazz-rock, balancing improvisation with ambitious composition. The concert runs through classics from their early albums, from 25 or 6 to 4 to Beginnings and I’m a Man, up to the suite Ballet for a Girl in Buchannon that contains Make Me Smile and Colour My World. The performance highlights the incandescent playing of Terry Kath, a guitarist admired by Jimi Hendrix. A major historical document of American rock from 1970, filmed outdoors, essential for understanding the emergence of one of the best-selling bands of all time.